Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869)
Edison, Thomas A. (Thomas Alva), 1847-1931, Peters, N. (Norris), lithographer, Hammer, William Joseph, 1858-1934, former owner. DSI, Edison, Thomas A. (Thomas Alva), 1847-1931, inscriber. DSI, United States. Patent Office · Washington, D.C. : U.S. Patent Office · leaf 1201
. A carbon filament for incandescing elec-tric lamps, secured at its ends to conducting-wircs, and having electroplated portions com-mencing at such ends and extending towardits center for reducing the length of its in can- 80descing portion, substantially as set forth. This specification signed… … INVENTOR: BY ATTORNEY . United States Patent Office THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.INCANDESCENT ELECTRIC LAMP. SPECIFICATION forming part of Letters Patent No. 264,654, dated September 19, 1882. Application filed August 7,1882. (No model.) To all whom it may concern:Be it known that I,…
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
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